Dyfyniad APA

Unesco. (1979). New UNESCO sourcebook for science teaching (1st.). Universities Press.

Dyfyniad Arddull Chicago

Unesco. New UNESCO Sourcebook for Science Teaching. 1st. Hyderabad: Universities Press, 1979.

Dyfyniad MLA

Unesco. New UNESCO Sourcebook for Science Teaching. 1st. Universities Press, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.